I use these for dry ribs and shoulders. For ribs, I prefer whole rack spare ribs (with tips) with the chine bone cut or removed, not St. Louis cut (tips removed). I also prefer spare ribs over baby backs. These rubs can also be put at the table for shaking. I've included a rub for oven barbecue, when the weather doesn't cooperate, and a rub for use on the smoker.

Memphis Dry Rub for Pork (Smoker)
Enough for four shoulders or three full racks of ribs.